/*
 * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.context.support;

import org.springframework.beans.factory.BeanCreationNotAllowedException;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.MessageSource;
import org.springframework.context.MessageSourceAware;
import org.springframework.core.io.Resource;
import org.springframework.util.Assert;

/**
 * @author Alef Arendsen
 * @author Juergen Hoeller
 */
public class Service implements ApplicationContextAware, MessageSourceAware, DisposableBean {

    private ApplicationContext applicationContext;

    private MessageSource messageSource;

    private Resource[] resources;

    private boolean properlyDestroyed = false;


    @Override
    public void setApplicationContext(ApplicationContext applicationContext) {
        this.applicationContext = applicationContext;
    }

    @Override
    public void setMessageSource(MessageSource messageSource) {
        if (this.messageSource != null) {
            throw new IllegalArgumentException("MessageSource should not be set twice");
        }
        this.messageSource = messageSource;
    }

    public MessageSource getMessageSource() {
        return messageSource;
    }

    public void setResources(Resource[] resources) {
        this.resources = resources;
    }

    public Resource[] getResources() {
        return resources;
    }


    @Override
    public void destroy() {
        this.properlyDestroyed = true;
        Thread thread = new Thread() {
            @Override
            public void run() {
                Assert.state(applicationContext.getBean("messageSource") instanceof StaticMessageSource,
                        "Invalid MessageSource bean");
                try {
                    applicationContext.getBean("service2");
                    // Should have thrown BeanCreationNotAllowedException
                    properlyDestroyed = false;
                } catch (BeanCreationNotAllowedException ex) {
                    // expected
                }
            }
        };
        thread.start();
        try {
            thread.join();
        } catch (InterruptedException ex) {
            Thread.currentThread().interrupt();
        }
    }

    public boolean isProperlyDestroyed() {
        return properlyDestroyed;
    }

}
